Ok - I appreciate that a lot of things happen at 2.5K revs in an S6 - I will be a little more specific......
I have a strange noise, almost like a rattle, or repeated tick, that is severely impairing my ability to enjoy the V8 noise of my S6, however it only occurs from 2.5k onwards as you accelerate. I don't think it is something loose etc that happens to rattle with harmonic oscillation at those revs, as it continues then throughout the rest of the rev range
My first thought as it seems rev specific was that it could be something to do with the Variable inlet manifold, but a bit of research suggests that only comes into play at 4K revs???
It appears to be from the drivers side of the engine only, although I am not sure if that is just where I hear it from as I am sat on that side!
No signs of anything untoward on VAGCOM, and doesn't appear to affect performance, it is just thoroughly annoying and means I no longer lower my windows when going through tunnels
My thoughts so far are:
- Noisy injector(s) on drivers bank of cylinders (perhaps injectors 'open' more at +2.5K revs?)
- Exhaust Manifold leak? (although I would imagine I would hear it all the way from tickover if so)
- Fuel return solenoid?
Anyway, I am open to suggestions if anyone has had similar/know the engine well/just has any harebrained ideas.
I currently have an S6 breaker with a knackered bottom end, so have plenty of parts to swap in to diagnose/solve, so unlike normal where I would be loath to swap loads of parts due to cost, I can try pretty much anything .
Any thoughts? I swapped to an S6 from a Corrado VR6 as I thought at least it was a sensible car with a non-sensible soundtrack, but at the minute I cant enjoy it!!!!
Cheers in advance
Dan
I have a strange noise, almost like a rattle, or repeated tick, that is severely impairing my ability to enjoy the V8 noise of my S6, however it only occurs from 2.5k onwards as you accelerate. I don't think it is something loose etc that happens to rattle with harmonic oscillation at those revs, as it continues then throughout the rest of the rev range
My first thought as it seems rev specific was that it could be something to do with the Variable inlet manifold, but a bit of research suggests that only comes into play at 4K revs???
It appears to be from the drivers side of the engine only, although I am not sure if that is just where I hear it from as I am sat on that side!
No signs of anything untoward on VAGCOM, and doesn't appear to affect performance, it is just thoroughly annoying and means I no longer lower my windows when going through tunnels
My thoughts so far are:
- Noisy injector(s) on drivers bank of cylinders (perhaps injectors 'open' more at +2.5K revs?)
- Exhaust Manifold leak? (although I would imagine I would hear it all the way from tickover if so)
- Fuel return solenoid?
Anyway, I am open to suggestions if anyone has had similar/know the engine well/just has any harebrained ideas.
I currently have an S6 breaker with a knackered bottom end, so have plenty of parts to swap in to diagnose/solve, so unlike normal where I would be loath to swap loads of parts due to cost, I can try pretty much anything .
Any thoughts? I swapped to an S6 from a Corrado VR6 as I thought at least it was a sensible car with a non-sensible soundtrack, but at the minute I cant enjoy it!!!!
Cheers in advance
Dan